+ def field_counts(self, answers):
+ for field_desc in self.field_descriptions:
+ field_name, params = field_desc
+ if params['type'] == 'options':
+ field_count = FieldOption.objects.filter(answer__in=list(answers), set__name=params['option_set']).count()
+ else: # text, link
+ field_count = sum(1 for answer in answers if answer.field_values.get(field_name))
+ yield field_name, field_count
+